818464 has 12 divisors (see below), whose sum is σ = 1611414. Its totient is φ = 409216.

The previous prime is 818453. The next prime is 818473. The reversal of 818464 is 464818.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 8464 = 900^2 + 92^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12757 + ... + 12820.

2⁸¹⁸⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

818464 is a deficient number, since it is larger than the sum of its proper divisors (792950).

818464 is a wasteful number, since it uses less digits than its factorization.

818464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25587 (or 25579 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 818464 is about 904.6900021554. The cubic root of 818464 is about 93.5405373900.

It can be divided in two parts, 8184 and 64, that multiplied together give a triangular number (523776 = T₁₀₂₃).

The spelling of 818464 in words is "eight hundred eighteen thousand, four hundred sixty-four".